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A novel routing architecture that balances incoming traffic over the Agile All-Photonic Network (AAPN) is proposed. The architecture is based on the adaptive highest random weight (Adaptive HRW) algorithm proposed to design load balanced internet routers. It extends the adaptive HRW algorithm by assigning balancing weights to each source-destination edge node pair in the network. The weights are adapted...
The Internet explosion has drastically increased the bandwidth demand of modern telecommunication networks and as optical networks provide an opportunity for the future Internet, it is expected that Internet providers will gradually replace their infrastructures with optical networks. The Internet is a decentralized set of networks (more than 29.000) known as domains or Autonomous Systems on a well-known...
DoS(Denial of Service) or DDoS(Distributed DoS) attack is a major threaten and the most difficult problem to solve among many attacks. Moreover, it is very difficult to find a real origin of attackers because DoS/DDoS attacker uses spoofed IP addresses. To solve this problem, we propose a probabilistic route selection algorithm to trace the attacker's real origin. This algorithm uses three types of...
In order to meet the overwhelming demands of content retrieval for mobile end users, the community effort has been made on designing next-generation Internet from a clean slate. In this paper, we present the design and performance evaluation of Integrated Caching, in which we assume each router on the Internet can cache contents that pass by and reply to content requests with its local copy. This...
The overall performance of hybrid ad hoc networks, which is the integration of ad hoc networks and fixed IP networks like the Internet is affected heavily by the discovery and selection of Internet gateways. Each of existing proposals is suited only for a limited range of network conditions and its performance can vary dramatically as the network conditions change. The obvious unidirectional links...
The evolution of the World Wide Web (WWW) service has incorporated new distributed multimedia conference applications, powering a new generation of e-services development, and allowing improved interactivity. Most common interactive real-time applications are fault-tolerant but suffer from QoS limitations; low-latency requirements and reliability are cumulative to conference success, it may easily...
Mobility protocols are originally proposed to support ongoing Internet connectivity of hosts or networks in motion. However, the requirement of seamless connectivity in mobile environment and use of route optimization between the communicating nodes have introduced several security vulnerabilities to mobility protocols. In this paper, we explain with illustrative examples major security threats on...
In order to construct the highway networks, the road tunnels become an inevitable deign to accommodate physical environment elements (e.g., mountains and rivers) in the world. For the recent constructed tunnels, the communication system within the tunnel is planed and designed ahead of time. However, the cost to build and maintain a complete communication system for existing tunnels may not be a cost...
Low Extra Delay Background Transport (LEDBAT) congestion control algorithm is designed to address the unfairness problem of TCP aggravated by applications that use multiple TCP connections for data transfer. LEDBAT operates under the assumption that the queue delay at the access router of the bottleneck link will be the primary varying contributor to end-to-end one-way delay. However this assumption...
Nowadays, multi-field packet classification is one of the most important technologies to support various services in next generation routers. In this paper, we propose a segment tree based parallel SRAM-based pipelined architecture called Set Pruning Segment Trees (SPST) for multi-dimensional packet classification. For solving the memory blowup problem, a grouping scheme called Partition by Length...
Delay Tolerant Networks (DTNs) are wireless networks in which at any given time instance, the probability of having a complete path from a source to destination is low due to the intermittent connectivity between nodes. Because of the differences between DTNs and traditional networks, the routing strategies about DTNs can not use the traditional routing methods directly. In the paper, we propose a...
Today's Internet is a massive, distributed network which continues to grow in size as globalization takes major role in everyone's life. The problem is complicated by the fact that one cannot rely on the cooperation of individual servers and routers to aid in the collection of network traffic measurements vital for these tasks. Packet Forwarding Priority can have a significant impact on the performance...
Real-time applications such as multimedia streaming and video conferencing have quite stringent Quality of Service (QoS) requirements from the network, because they are more sensitive to available bandwidth and loss rate than non real-time traffic. To provide scalable and simple Quality of Service (QoS) mechanism for multicast services, Probe-Based Multicast Admission Control (PBMAC) scheme was proposed...
Peer to peer networks are fast becoming the most popular file sharing media, guaranteeing complete user anonymity to the clients. However, modern P2P networks suffer from Sybil attacks, which forge multiple identities to influence the global decisions in the network. This paper suggests a novel solution to minimize Sybils influence using unique combination of Psychometric Tests, Color Tests &...
In this paper, we present a naming scheme for heterogeneous networks composed of infrastructure-based and infrastructure-less networks where nodes may be subject to intermittent connectivity. The proposed scheme aims at decoupling object identification from location and is designed to operate with status-quo Internet routing. We showcase the proposed naming scheme implemented on the NS-3 network simulator...
While multiple access links enhance the availability and utilization of multicast service nodes, the resource allocation balancing needs to be performed on a link basis, which is usually not considered in most overlay multicast routing algorithms. To accurately represent the bandwidth consumption of each overlay node, we need not only a multihomed proxy model to describe the overlay multicast routing...
This paper addresses the problem of optimal gateways selection and route selection to Internet in backbone wireless mesh networks (WMNs) where each mesh router (MR) is equipped with multiple radio interfaces and a subset of nodes serve as gateways to Internet. Several schemes have been proposed to route packets in WMNs or to select appropriate gateways to connect clients to Internet. However, most...
This paper describes a research on The Flexible Bus Systems (FBS) using Zigbee as a communication medium. The Flexible Bus System is a demand responsive transit (DRT) but it is more efficient and convenient in a sense that it entertains passenger's demands and gives bus locations in real time. The real time synchronization of The Flexible Bus System makes it information rich and unique as compared...
6LoWPAN is for IPv6 packets to be sent to and received from over IEEE 802.15.4 based networks for applications which require wireless internet connectivity at lower data rates for devices. However it is well known that the management of addresses for devices that communicate across the two dissimilar domains of IPv6 and IEEE802.15.4 is complicated. Routing itself is another problem especially between...
In this paper, we propose a new naming system to split an address into separate Identifier and Locator and a network architecture based on our naming concept, in order to support mobility and seamless communication. Also our solution aims to solve the scalability problem as well as provide the way to control the traffic under the multi-homing condition. Our solution consists of three core concepts...
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